Here's my go at a car seat poncho for my friends daughter. It was a little rough, bc I live in LA and she's on the east coast. And I had never seen one in person, and I don't have a child here the right size to try it on. Its a little big, but I am pretty happy with the way it turned out. I couldn't find a zipper I liked, and I wanted to get it to her ASAP, so I went with 2 or 3 pieces of velcro instead.